Beijing tech instrument Co., Ltd.   

Automatic brightnessmeter ADCI-60-W (Universal) in accordance with the latest standards: JJG512 2002 meter verification regulation. The instrument measurement showed: CIEX, Y, Z, x, y three stimulate value, chroma; Lab color space; L*a*b* color space; a variety of Whiteness: Blue White (R457), Hunter Ganz whiteness, brightness, whiteness of building materials, ceramics whiteness. All white color value between the measurement range: plate, paper, cloth, plastic, ceramics and other has a certain plane (> Phi 15mm) solid sample; calcium carbonate, talc, kaolin, wollastonite